Horace wyman



(H 0 Model.)

H. WY M'A'N.

No. 490,239. Patented Jan. 17, 1893.-

Unrrnn STATES PATENT Quince,

HORACE VVYMAN, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE OROMPTONLOOM W'ORKS, OF SAME PLACE.

LOOM.

SPECIFICATION forming part of Letters .Patent No. 490,239, dated January17, 1893.

Application filed September 1, 1892. Serial No. 444,743. (No model.)

To all whom it may concern.-

Be it known that I, HORACE WYMAN, of Worcester, county of lVorcester,State of Massachusetts, have invented an Improvement in Looms, of whichthe following description, in connection with the accompanying drawings,is a specification, like letters and. figures on the drawingsrepresenting like parts.

This invention has for its object to improve and simplify that class ofloom employed in the manufacture of tufted fabrics, among which may beclassed carpets.

This present invention is intended as an improvement on that describedin United States Patent No. 186,374, dated January 16, 1877. The patentreferred to shows and describes a series of tuft-yarn beams, mounted inbearings on a pair of chains in such manner that the said beams may betaken bodily from the chains and lowered to the warps. The warp beamshave each an attached bar provided with a series of tubes through whichthe weft-yarns are led, the free ends of said tubes, when the beam istaken from the chains and brought down, being made to enter the spacesbetween and pass below the lowermost warp threads and thus leave thefree projecting ends of the weft-yarns below the lower half of the shed,and thereaftera pick or shot of weft is inserted and the lower ends ofthe tuft-yarns are turned upwardly in said spaces about the said weftand back through to and above the upper part of the shed, and the row oftufts so formed is beaten in by the reed and the tuft-yarns are cut off,the beams being thereafter lifted and put back into the chains and thelatter moved to bring a new beam into working position.

One part of my improvement in this class of loom using an endless chaincarrying tuftyarn beams which are removed from the chains when thetuft-yarns of any one beam are to be used to produce a row of tufts,consists in so constructing the tuft-yarn beams and their attachedtuft-yarn carriers, and so moving the same that the necessity of Wipingor turning the free ends of the tuft-yarns from the lower part of theshed to and above the upper part of the shed, and also the use ofmechanism for such purpose, is avoided.

In accordance with my invention as herein contained, the frames havingthe tuft'yarn beams and attached tu ft-yarn carriers are removed fromthe chains, and carried down to the Warp, and the ends of the carriersare made to enter the shed from the upper plane thereof, at a pointbetween the fell of the fabric and the reed, the movement of thecarriers into the shed being, always, however, terminated before thefree ends of the tuftyarns are drawn below the warp threads in the upperplane of the shed, the friction of the free ends of the tuft-yarnsagainst adjacent Warp threads aiding in keeping them above the shed, thereed also aiding in this operation of keeping up the ends, as will bedescribed.

The transferring arms or devices, as here shown, are so mounted andmoved in such path and direction, toward and with relation to the warpthreads, that the carriers are made to occupy in the shed apositioninclined from their free ends or points upwardly and forwardly towardthe fell of the fabric, so as to leave between the ends of thetuft-yarns, the under side of the threads in the upper plane of theshed,and the said carriers, a space for the introduction ofaweft-carrying needle such as is commonly used in the patent referredto, and in other regular tuft-fabric looms, to thus leave a shot of weftin the shed, the weft crossing the tuft-yarns between their free ends(yet above the warp threads) and the ends of the said carriers. Thisdone, the carriers begin to ascend and the reed to move forward, and thecarriers in their ascentdraw the loops of tuft-yarn up to and bend themabout the weft, and the reed acts directly against the ends of thetuft-yarns, to push them up to the fell, the ends of the carriers intheir ascent traveling at the same time toward the fell, the reed andcarriers in their longitudinal movement substantially in unison,co-operatin g to slide the row of bentlooplike ends of the tuft-yarns upto the fell. The free looped ends of the tuft-yarns always above theupper plane of the warp having been beaten or carried up to the fell, asdescribed, with the shot of weft crossing them, a second shot of fillingis introduced in usual manner Lil and is beaten up to the said loopedtuft-yarns and thereafter the tuftyarn carriers and beam are liftedsufficiently to pull off enough length of yarn for a succeeding row oftufts, and the tuft-yarns are cut off, leaving a completed row oftuft-loops, and the beam carrying the main body of the said yarns isthen further lifted and put back into the chain, and the latter moved tobring another tuftyarn beam into working position.

The particular feature in which my invention consists is in. the use oftwo cams with connections therefrom to actuate the ends of the tuft-yarncarriers to place the tuft-yarns in the warps, and afterward above thefell, as described and defined in the claim at the end of thisspecification.

Figure 1, of the'drawings shows a sufficient portion of a loom forweaving tufted fabrics to enable this invention to be understood, thedotted lines showing the transferring devices elevated to take atuft-yarn beam from the chain. Figs. 2 and 3, show in section parts ofthe frames and chains to represent the manner of connection between theframes and chains, Fig. 3, showing the parts of Fig. 2, separated butwithout the beam and tuftyarn carriers. Fig. 4, is a detail of thecambar it and parts moved by it, as will be hereinafter referred to;Fig. 5, is a section in the line :20, Fig. 2, with the beam journalomitted; Fig. 6, is a section in the line m, Fig. 2; Fig. 7, on anenlarged scale shows part of a chain,one of the frames with thetuft-yarn beams and carriers, and the end of one of the transferringarms; and Fig. 8-, shows in plan view the transferring arms to engagethe frames and take them from and put them back into the chains, thesupport for one end of the shaft a shown in said figure being omittedtosave space upon the drawings.

The shaft H; the sprocket wheel H the endless chains H (but one shown)composed of single and double links 77, h; the tuft-yarn spools H,mounted in bearings 20 of a spoolframe H, provided with end pins h? toenter the slots or spaces between the double links of the chains; springcatches Nico-operating with the end pins and acting to engage the rearsides of the links of the chains to retain the frames in position on thechains as in Fig. 3; the spring brakes h (only one being shown in Figs.1 and 7) to bear on and prevent the tuft-yarn beams or spools fromrotating improperly; the pivoted transferring arms K one having a toe12; arms K; cam 10 lever rod 7c having wedge 10?; rods 70; guide 10 andlever is", and spring 18, are and may be all substantially as in saidpatent, the rod 10 being suitably moved by its cam to act on toe 12 andseparate said arms K to enable a tuft-yarn beam or spool to bedisengaged from the spool frame when the latter having been put backinto the chains is to be left there. The chains H in practice may besupported and moved int-ermittingly, as provided for in the said patent.

The tube-like tuft-yarn carriers to in this my invention areatta'chedjto each spool-frame H, and depend vertically there from.

In my invention, as herein shown and preferred, the hubs of the arms Kon which the transferring arms K are pivoted are mounted on a shaft a,supported by links a pivoted at some suitable point, as at 0, (see Fig.1),

so that both of said arms K and K may move back and forth in unison byvirtue of the links a said links constituting supports for thetransferring arms during the operation of introducing the carrierscontaining the tuftyarns between the warp-threads in the shed. andbetween the reed and the breast-beam, or the fell, the construction ofthe operative parts being such as to insure the movement of thedelivery-ends of the tuft-yarn carriers backward and forward withrelation to the length of the warps during the operation'of insertingparts of the tuft-yarns, as between their free ends and the ends of thecarriers, into the shed to form loops and havesaid loops finallycompacted together at the fell, the free ends of the tuft-yarnsremaining above the warps in the upper plane of the shed. p

The forward ends of the arms K are jointed, as herein shown, to upperends of slidebars 6 mounted on guide-bars e pivoted at 9 there being onesuch slide-bar and guidebar near the inner side of the loom frame ateach side thereof; the links); arms 125;"adj ustably attached to arms fof a rock-shaft f, having other arms f, having rolls f each acted on bya like cam y the arms a, 6. attached to a tubular rock-shaft surroundingthe shaft f; the cam e for acting on a roll carried by the arm e f;thelink e 'connecting the end of the arm 6 with the upper end or theguide a reed 1', and lay d but partially shown; l-ink k shaft h and armsh and 409, are and may be all substantially as provided for in UnitedStates Patent No. 446,402. dated February 10, 1891-. r

In operation let it be assumed that the chains containing the. tuftyarnbeams or spools are being moved intermittingly, as pro vided for in thePatent No. 186,374. As the chains brings a tuft-yarn beam or spool intothe position shown by the beam represented by dotted lines (Fig. 1) thearm K and with it the transferring arms are raised by or through thevertical movement of the slides e to which they are attached, so thatthe clutch devices 22-, carried by the transferring arms engage theendsof thefraine H for the tuft-yarn beam, disengage spring 72, and take thebeam from the chain. As the slides e descend, they bring the arms K andK and said frame and beam down so that the vertically -depending tuftyarn carriers a, below which hang the free endsof the tuft-yarns i,enter between the warps of t-he'more or less open or formed shed at apoint substantially close to the reed r, the free ends of the tuftyarns,by their friction against the warpthreads in the upper half or plane ofthe shed and also preferably by contact with the reed, being kept abovethe upper part of the shed throughout the entire operation of formingthe row of tufts.

Fig. 1, of thedrawings, by dotted lines, shows in elevated position thetransferring arms or devices which are to take a tuft-yarn beam andframe from the chain, the full lines showing the tuft-yarn frame andbeam brought down with its carriers passed into the shed between thewarp threads: This, as here shown, is the position occupied by thecarriers in the shed when the weft-carrier, a needle or other equivalentdevice, is passed into the shed to leave a weft 10 therein it lyingacross thetuft-y'arns in the'spacebetween their free ends, the undersides of the warps in the upper plane of the shed, and theencls of thecarriers from which the said tuft-yarns protrude, The shape of the cam fis such that after the weft has been laid as stated, the transferringarms are made to move forward and upward, moving the ends of thecarriers toward the fell, the ends of the carriers at such timetraveling in the spaces between the warp threads, and above them as thetuftyarns are drawn up against and about the weft thread. As thetuft-yarn frame and beam are being moved upward each of the carrierswill be lifted from the warps so that the reed can move freely forwardand acting against the free ends of the tuft-yarns yet above the upperplane of the warp, aid in keeping said ends in loop-form, and the endsof the carriers having been elevated sufficiently from between the warpthreads to not interfere with the reed, the latter in its continuedmotion by acting against the free ends of the tuft-yarns bent about thefilling, carries such looped-ends and filling to the fell where they arebeat in and left, while a second shot of weft or filling is put into ashed of the warp, the reed having again receded for such purpose, andthe reed then comes forward again, beatin g the second shot of fillingin place so that it aids in retaining the bent or looped portions oftuft-yarns about the filling previously inserted, and thereafter thetransferring arms are further elevated to draw off sufficient length ofyarn for a succeeding row of tufts, and the tuft-yarns are cutoffbetween the upper side of the warp threads and the lower ends of thecarriers, and the tuft-yarn beam is lifted and put back into the chainfrom which it was taken, and the chain is moved to bring anothertuft-yarn beam in place. During these operations the warp will be openedand closed in proper manner to secure the picks, as practiced in theweaving of Moquette carpets or tufted fabrics. By manipulating thetuft-yarn beams as stated, and inserting the tuft-yarns by means ofcarriers so introduced into the shed from above that the free ends ofthe tuftyarns will not at any time be carried below the upper side ofthe warp, and inserting the shot of filling across the tuft-yarns whilethe latter are laid partially into the open shed,

the liability of the tuft-yarns getting on the wrong side of thewarp'threads, which is liable to happen when the free ends of a tuftyarnis wiped upwardly, as in the patent first referred to, is obviated; andI have found in practice that the introduction and manipulation of thetuft-yarns in the manner herein described results in the production of amore compact fabric with the minimum of tuftyarn, and at a much morerapid rate.

I have omitted from the drawings the cutting mechanism for thetuft-yarns, as well as the needle carrying the weft or filling; but saidparts in practice may be all substantially as in United States PatentNo. 446,402 before referred to.

In case of any tendency of the tuft-yarn carriers to enter incorrectlythe spaces between the pairs of warpthreads as the carriers or frames towhich they are attached are being inserted into the shed, I haveprovided the loom with centering or positioning devices whereby, whenthe frame containing the carriers and tuft-yarn beam is being lowered tobring the carriers into the shed, some part of the said mechanism in itsapproach to the warps will be acted upon so as to place the saidtuft-yarn carriers in line with the proper spaces between the warpthreads.

The positioning device herein shown consists essentially of inclinedarms or prongs 2, connected preferably with some part of the rigidframe-work of the loom. It will be understood however, that myinvention,in so far as it relates to the positioning device, would not be departedfrom by causing this said device to act on some other part than thetransferring arms K, as the said positioning device might act on any ofthe parts approaching the warps and the shed.

In aloom of the class herein described, wherein the ends of a greatnumber of tuftyarns are to be formed into tufts, the certainty of thecorrect operation of the parts is insured by making the shed as small aspossible and by keeping the reed as near as possible to the fell whenthe carriers are being inserted between the warp-threads and into theshed, the reed at such time acting as a guide for some of the warpthreads.

In another application Serial No. 444,742, filed September 1, 1892, Ihave shown an ap paratus very similar to that herein shown and describedbutin that application the reed does not act on the free ends of thetuft-yarn loops and help to keep them up and carry them forward to thefell. The co-operation of the reed as herein described with the freeends of the tuft-yarns is of the gist of this present in vention.

Having described my invention what I claim as new and desire to secureby Letters Patent is:-

In a loom for weaving tufted fabrics the following instrumentalities,viz: two movable chains; a series of tuft-yarn frames mounted thereinand having a series of tuft-yarn carriers; transferring arms adapted toengage the said tuft-yarn frames; a lay having a reed; and two cams andtwo sets of connections between said cams and the transferring arms,each set actuated by one of said cams, one cam controlling the up anddown motion of the transferring arms and the other the back and forthmovements of the ends of the tuft-yarn carriers with relation to theWarp and reed, the shape of said cams being such as to enable the endsof the tuft-yarn carriers to be placed in next the reed, the carriersbeing then moved downward and their ends forward to form loops betweentheir free ends then above the warps, the under side of the upper warpsof the shed and the carriers to HORACE WVYMAN.

Witnesses:

GEO. W. GREGORY, LAURA MANIX.

